Thank you very much for your explanation. I am not sure whether I got the point. The situation that particles are larger than the mesh cell is applied for unresolved coupling, in which the interaction along the particle surface is not determined. Therefore, I cannot reproduce the capillary effect by unresolved coupling.
I have considered your advice that I fixed the particles. It is really helpful.
I wonder if the semi-resolved coupling would help, becasue two-way coupling is really important to my project.Â
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